Clan Supremacy

When Clan Supremacy enters the battlefield, put
a +1/+1 counter on each creature you control,
and creatures you control gain trample until end
of turn.
Whenever you discard a red or green creature
card, you may pay {r/g}. If you do, target creature
you control gets +X/+0 until end of turn, where
X is the discarded card's power. If the discarded
card had haste, the target creature gains haste.
The same is true for first strike, double strike,
flying, trample, hexproof, and indestructible.